The Kickstarter Hall of Slightly Insane (projects)

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On the lunatic fringe of crowdfunding

Crowdfunding has resulted in some terrific new products that might never have seen the light of day. But for every Pebble Watch and Oculus Rift, there's a very weird counterpart.

Indeed, people support not only the ingenious items on sites like Kickstarter and Indiegogo but also often gravitate toward the unusual ones, many of which defy logic and reason but astonishingly meet or even exceed funding goals.

Sometimes it's a joke that goes viral. Sometimes it's a legitimate product or campaign that may not make a lot of sense to most people. And sometimes there's just no explanation for the appeal. Here's a look the oddest crowdfunding projects that have actually struck a chord with backers.

—By Chris Morris, special to CNBC.comPosted 13 August 2014Updated 29 April 2015 by CNBC staff